Principle of producing oscillating energy of desired characteristic



I. I. EREMEEFF Feb. 20, 1934.

PRINCIPLE OF PRODUCING OSCILLATING ENERGY OF DESIRED CHARACTERISTIC Filed March 2, 1928 Patented Feb. 20, 1934 UNITED STATES PATENT OFFICE PRINCIPLE 0F PRODUCING OSCILLATING ENERGY OF DESIRED CHARACTERISTIC 5 Claims.

My invention relates to the system of producing complex oscillating electric energy of predetermined characteristic of its wave form, and of predetermined frequency and intensity, said energy being obtained by combining a number of electric oscillating energies, each having a predetermined frequency and intensity, and having the characteristic of a sine wave form.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which:-

Fig. 1 is a diagrammatic view of apparatus embodying elements for carrying out the invention described herein.

Fig. 2 is a graph showing the curve of a predetermined complex oscillating electrical energy and its components.

In Fig. 2, I have shown a graph representing an oscillating electric energy with a predetermined characteristic of its wave form and the simple harmonic components which it is known will produce the oscillating energy of predetermined characteristic. In the graph in Fig. 2, the numerals 26 to 37 inclusive represent the simple harmonic components which will produce the oscillating energy represented by the, curve 38.

For convenience of illustration and as an example of one method of forming the simple harmonic components, I have shown a number of electrical oscillator circuits 39 to 50 inclusive which are assumed to produce the sine waves 26 to 3'7 inclusive, respectively. These oscillator circuit units may be of any desired form and may have for example two tuning elements or condensers 51 and 52 so that by varying the condenser 51, any certain unit may be tuned to the desired simple sine wave.

Connecting all oscillators together for example by transmitters and tuning each oscillator to a desired period, for example one of the twelve periods shown in the graph in Fig. 2, there will be reproduced in the main circuit connected, for

instance with the loud speaker 53, the sum of all the twelve oscillating energies or harmonics, thus producing the oscillating energy of the desired characteristic represented by the curve 38.

As before stated. the variable condensers or inductances 51 are for individually changing the frequency of each oscillator unit and by connecting together all variable condensers or inductances 52 as by a rod 54 which may be manually or mechanically actuated, the frequencies of all the units will be simultaneously varied, and the resultant compound wave form will be slightly varied in its characteristics.

Each oscillator unit is shielded from the others or so connected with the main circuit that the operation or" one unit has no effect upon said other units and for convenience of illustration, I have shown the output of each unit connected with an individual microphone 55 which includes both receiving and transmitting elements so that the oscillations produced by the oscillator units and received in the microphones will be transmitted to the main circuit 56 which will carry the oscillations to the loud speaker 53 from which they will be emitted in combined form as an 05- cillating energy with the desired characteristic of wave form.

Having thus fully described my invention, what I claim as new and useful is:-

1. In combination, a plurality of oscillators, each having a plurality of frequency control means, a unicontrol means for varying the frequency of the said plurality of oscillators in unison, said unicontrol means actuating all except at least one of the frequency control means of each 30 said oscillator, and means for combining the output of said oscillators.

2. In combination, a plurality of oscillators having frequency control means, a unicontrol means for varying the frequency of the said plurality of oscillators in unison, individual means for varying the frequency of each of said oscillators separately, and means for combining the output of the said oscillators.

3. The invention as expressed in the preceding claim. in which each oscillator is individually shielded.

4. The invention as expressed in claim 2, in which the combing means is a plurality of magnetically operated microphones whose electrical outputs are in series and whose individual inputs are actuated by the individual outputs of said oscillators.

5. The invention as expressed in claim 2, in which the said oscillators are individually shielded and said combining means is constructed so that one oscillator will not affect another, said combining means comprising a plurality of magnetically operated microphones whose electrical outputs are in series and whose individual inputs are energized by the individual outputs of said oscillators.

IVAN I. EREMEEFF. 

